Drone or Spacecraft
Drone In aviation and space, a drone refers to an unwritten plane or spacecraft. Another word for this is "unmanned aerial vehicle" or UAV. On Earth, drones are often used…
My Journey of Physics
Intro I am Rahul Aggrawal. I am a physics teacher, researcher and theoretical physicist. Physics gives me pleasure and teaching physics gives me stable happiness. My physics articles and blogs…
Motivation behind Physics
Whenever I teach physics. I ask to myself. Why I am teaching physics? why should anyone study physics? Is there any motivation behind it? What gives physics to society? How…
Projectile Kya Hai?
What is a Projectile? A projectile is an object on which only force acting is gravitational. In general projectile is a motion in which force is not in the direction…
Four Fundamental Forces
There are four fundamental forces that exist in nature. They are Gravitational force, Electromagnetic force, Weak nuclear force and Strong nuclear force. Among these forces Strong nuclear force is strongest…
Last dream of Einstein
Last dream of Einstein (Gauge Theory of Gravity) The last dream of Einstein was to unify the four fundamental forces. It has not been possible yet because scientists could not…
Assignment Physics Units and Motion
Assignment Physics 1 Why do we have different units for the same physical quantity? The vernier scale of a travelling microscope has 50 divisions which coincide with 49 main scale…
A child udergoing chemotherapy
A threat to human health “cancer” and Reasons behind cancer
A threat to human health “cancer” and Reasons behind cancer Cancer Cancer is a disease. In this disease, abnormal cells divide and expand without control. Scientists say that cause of…
Special Theory of Relativity
Special Theory of Relativity Today when I visit a school some students come to near me. They were asking me about the special theory of relativity. One of the boys…
Launching Our New ScienceteenApp
We are glad and super excited in launching our new ScienceteenApp. We are thankful for your suggestions and the interest that you have shown in reading our articles. With this small and compact app, you will…